These wonderfully colourful opal earrings are an electric blue that glows brightly when the light hits them. They measure 5mm in diameter and are made with gold plated sterling silver (vermeil). These stud earrings come mounted on a linen presentation card. You also have the option of adding a well crafted glass presentation cloche. They transform the earrings into tiny historical specimens, and make a beautiful and engaging gift idea. Any questions? We are here to help!